Portable USB headphone amps

Specs as supplied by the manufacturer.

Ultrasone NAOS €169

 

  • 24 bit / 192 kHz PCM
  • compatibility: Smartphone (iOS, Android), Tablet, Notebook/Computer (Mac OS, Windows)
  • output: 3,5 mm mini-jack
  • frequency: 10 Hz - 30 kHz
  • dimensions: 46 mm x 18 mm x 6 mm
  • weight: 6 g